There are alot of ways to say it but bullet proformance is not usally stated to make them bleed. Terminal proformance is by static shock to the nervous system and the wound channel it creates . The wound channel causes the bleeding you are talking about. With todays bullets just about any will cause that. I really dont like the NBT either , I have seen to many not preform like they were stated. Whitetail deer are really not that tough to bring down , Just practice shooting for that one shot you may have.